[Nexus 7 (2013) Q&A] n7br:
Hi k23m, I tried the suggested WinPE and tested on Win10 x86 and Win8 x86. Both didn't not work. The device is recognized by device manager also MiFlash. But when I click on "Flash", MiFlash shows the device is busy then the device is "unregistered" in device manager and an usb error appears: "device descriptor request failed.". I googled and found that this error can be caused by power supply issue. Usually is solved after disconnecting everything (notebook, tablet, usb) for a while then re-connect it again. Unfortunately did not worked for me. Also I tried 4 different USB cables unsuccessfully. See below the screenshot and MiFlash log.

[00000DDC]CreateManagedObject(1245): Unspecified error(0x80131700)
[00000DDC]GetFactoryObject(1317): Unspecified error(0x80131700)
[00000DDC]CreateManagedObject(1245): Unspecified error(0x80131700)
[00000DDC]GetFactoryObject(1317): Unspecified error(0x80131700)
[00000DDC]GetFactoryObject(1338): The specified service does not exist.(0x800704db)
[00000DDC]GetSearchPath(1393): The specified service does not exist.(0x800704db)
[00000648]CEmergencyFlasher::IsQPSTServer(634): Not implemented(0x80004001)
[00000648]COM10	0.03	Load programmer "X:\data\ME571KL-OPEN_epad-eng-800M-xhdpi-hdpi-D00_1.15.F_0610-10.10.0.51.1.19-20131230-1921-Rawdata.edited\MPRG8064.hex"
[00000648]COM10	0.03	Open serial port "\\.\COM10"
[00000648]COM10	0.03	Send parameters command
[00000648]COM10	0.03	Write and verify address 0x2a000000, size 59372
[00000648]COM10	0.30	Jump to flash programmer(0x2a000000)
[00000648]COM10	0.45	Open boot file "X:\data\ME571KL-OPEN_epad-eng-800M-xhdpi-hdpi-D00_1.15.F_0610-10.10.0.51.1.19-20131230-1921-Rawdata.edited\8064_msimage.mbn"
[00000648]COM10	0.45	Open serial port "\\.\COM10"
[00000648]COM10	5.89	Send hello command 0
[00000648]ReadRobust(198): Access is denied.(0x80070005)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReceivePacket(455): Reached the end of the file.(0x80070026)
[00000648]DownloadMiniKernel(887): Reached the end of the file.(0x80070026)
[00000648]COM10	7.98	Send hello command 1
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReceivePacket(455): Reached the end of the file.(0x80070026)
[00000648]DownloadMiniKernel(887): Reached the end of the file.(0x80070026)
[00000648]COM10	10.17	Send hello command 2
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReceivePacket(455): Reached the end of the file.(0x80070026)
[00000648]DownloadMiniKernel(887): Reached the end of the file.(0x80070026)
[00000648]COM10	12.36	Send hello command 3
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)
[00000648]ReadRobust(198): Reached the end of the file.(0x80070026)

before_flash.png

flash.png

Ps.: I'm not allowed to attach files here. :(

Before I mess the N7 partition, everything was working. Also I did a backup. So I don't think or expect a hardware issue. Any other idea to recover? I'm almost giving up but I don't like the idea. N7 is a very good tablet.